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$373+ Cheap flights from Seattle (SEA) to London City (LCY)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LCY
2月 10 — 2月 171
週二 2/10
週二 2/17
1 adult, Economy
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Cheap flight deals from Seattle to London City

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to London City (LCY). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 1月 11, 2026.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$624
(The Travel House)

One-way from

$373
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$641
Provider with most accurate pricing for Seattle/Tacoma Intl-London City flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-London City flights.
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From Seattle/Tacoma Intl to London City
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One-way flight from Seattle/Tacoma Intl to London City
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Highest demand for flights based on searches. 15% potential increase in price ($138 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Seattle to London City

Cheapest flights from Seattle to London City
Explore the most affordable flight options available from Seattle to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1月 11, 2026.

This The Travel House deal was found by Cheapflights users on 1/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週一 1/2612:35 pmSEA - LCY
2 stops20h 30mSWISS
週一 2/25:45 pmLCY - SEA
2 stops35h 27mSWISS
Deal found 1/9$624
This KAYAK deal was found by Cheapflights users on 1/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週日 2/110:58 amSEA - LCY
2 stops17h 57mSWISS
週三 2/189:20 amLCY - SEA
2 stops21h 23mSWISS
Deal found 1/10$636
This KAYAK deal was found by Cheapflights users on 1/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週三 1/2110:58 amSEA - LCY
2 stops22h 07mSWISS
週一 1/261:30 pmLCY - SEA
2 stops39h 42mSWISS
Deal found 1/9$637
This KAYAK deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週三 1/2810:58 amSEA - LCY
2 stops17h 57mSWISS
週一 2/25:45 pmLCY - SEA
2 stops35h 27mSWISS
Deal found 1/8$638
This Delta deal was found by Cheapflights users on 1/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週日 1/183:10 pmSEA - LCY
1 stop32h 05mDelta
週一 1/269:20 amLCY - SEA
1 stop34h 30mDelta
Deal found 1/10$645
This Virgin Atlantic deal was found by Cheapflights users on 1/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週一 2/233:05 pmSEA - LCY
1 stop17h 30mVirgin Atlantic
週一 3/25:05 pmLCY - SEA
1 stop26h 30mVirgin Atlantic
Deal found 1/9$646
This Virgin Atlantic deal was found by Cheapflights users on 1/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週一 2/238:00 amSEA - LCY
2 stops16h 50mVirgin Atlantic
週三 3/48:05 pmLCY - SEA
1 stop23h 30mVirgin Atlantic
Deal found 1/10$650
This KAYAK deal was found by Cheapflights users on 1/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週三 4/810:48 amSEA - LCY
2 stops23h 52mSWISS
週二 4/217:15 pmLCY - SEA
2 stops36h 12mSWISS
Deal found 1/10$652
This KAYAK deal was found by Cheapflights users on 1/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週一 9/211:45 pmSEA - LCY
2 stops19h 45mSWISS
週四 10/89:15 amLCY - SEA
2 stops17h 21mSWISS
Deal found 1/9$653
This Virgin Atlantic deal was found by Cheapflights users on 1/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週日 3/16:00 amSEA - LCY
2 stops17h 15mVirgin Atlantic
週日 3/85:50 pmLCY - SEA
1 stop25h 45mVirgin Atlantic
Deal found 1/9$654

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to London City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated 1月 11, 2026.
Use the filters below to find and compare flights from Seattle to London City Airport that are best for you.

Fly from

Seattle

Fly to

London City

Route

Depart

Return

Price

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

週三 1/21

3:10 pm-4:35 pm

1 stop17h 25m

London City

週一 1/26

10:00 am-11:50 am

1 stop33h 50m

$645

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

週一 2/9

3:05 pm-4:35 pm

1 stop17h 30m

London City

週一 2/16

8:05 pm-11:40 am

1 stop23h 35m

$645

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

週一 1/19

3:10 pm-4:35 pm

1 stop17h 25m

London City

週二 1/27

10:00 am-11:50 am

1 stop33h 50m

$645

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

週日 1/18

3:10 pm-7:15 am

1 stop32h 05m

London City

週一 1/26

9:20 am-11:50 am

1 stop34h 30m

$645

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

週三 1/21

3:10 pm-4:35 pm

1 stop17h 25m

London City

週二 1/27

10:00 am-11:50 am

1 stop33h 50m

$645

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

週二 1/20

3:10 pm-4:35 pm

1 stop17h 25m

London City

週一 1/26

9:20 am-11:50 am

1 stop34h 30m

$645

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

週二 2/17

3:05 pm-5:20 pm

1 stop18h 15m

London City

週一 2/23

5:05 pm-11:40 am

1 stop26h 35m

$646

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

週一 3/2

3:05 pm-4:35 pm

1 stop17h 30m

London City

週一 3/9

8:05 pm-12:35 pm

1 stop23h 30m

$646

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

週一 2/23

6:10 am-8:50 am

2 stops18h 40m

London City

週一 3/2

8:05 pm-11:35 am

1 stop23h 30m

$651

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

週日 2/1

3:05 pm-5:20 pm

1 stop18h 15m

London City

週三 2/18

7:45 am-10:25 pm

2 stops22h 40m

$655

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/10

Showing 1-10 of 22 results
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  • Most accurate provider: When it comes to deals on Seattle-London City Airport flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Seattle-London City Airport flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Seattle-London City Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-London City Airport flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-London City Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to London City

Have a flexible travel schedule? Discover the best time to fly to London City from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing London City

Get insights into the airlines that provide service to London City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London City. Reviews last updated 1月 11, 2026.
Get a feel of what it's like to fly with Scandinavian Airlines from Seattle to London City Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.3
Good
1,642 reviews

Overall

7.3

Boarding

7.6

Comfort

7.3

Crew

8.0

Entertainment

6.6

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

SFO - CPH

Flight was changed causing 5 hour layover in Copenhagen And no accommodations were made to account for this at the lounge or anything like that
Scandinavian Airlines
7.3
Good
1,642 reviews
Scandinavian Airlines
7.3
Good
1,642 reviews

Overall

7.3

Boarding

7.6

Comfort

7.3

Crew

8.0

Entertainment

6.6

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

SFO - CPH

Flight was changed causing 5 hour layover in Copenhagen And no accommodations were made to account for this at the lounge or anything like that

Related info for your journey

Find useful and relevant information for your journey from Seattle to London City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to London City?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to London City from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to London City should be relatively easy as there are 0 daily outbound flights to London City from 1 airline.

  • How long is the flight from Seattle to London City Airport?

    A quick flight from Seattle to London City Airport can take about 17h 25m. Delta provides one of the quickest options available for as low as $645. Seattle and London City Airport are separated by a distance of 4794 mi.

  • What is the cheapest airline to fly from Seattle to London City Airport round-trip?

    According to our current data, Scandinavian Airlines ($962), offers the cheapest pricing from Seattle to London City Airport.

  • Can I find deals for flights from Seattle to London City that include hotel bookings?

    Yes. In addition to deals on Seattle to London City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to London City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to London City.

  • Can I find deals for business class flights from Seattle to London City?

    Yes. Cheapflights offers flight deals from Seattle to London City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near London City Airport?

Book flights to London City Airport if you plan to visit one of these locations
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Croydon
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Eastbourne
Sutton

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Seattle to London City

Discover the top airline that operate flights from Seattle to London City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated 1月 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$962Average$1,000FlexibilityNo cancel feeOn-time77%

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